90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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#include "libc/str/str.h"
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#define ALNUM 1
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#define ALPHA 2
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#define BLANK 3
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#define CNTRL 4
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#define DIGIT 5
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#define GRAPH 6
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#define LOWER 7
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#define PRINT 8
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#define PUNCT 9
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#define SPACE 10
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#define UPPER 11
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#define XDIGIT 12
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static const struct {
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char name[7];
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char type;
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} kWcTypes[] = {
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{"alnum", ALNUM}, {"alpha", ALPHA}, {"blank", BLANK}, {"cntrl", CNTRL},
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{"digit", DIGIT}, {"graph", GRAPH}, {"lower", LOWER}, {"print", PRINT},
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{"punct", PUNCT}, {"space", SPACE}, {"upper", UPPER}, {"xdigit", XDIGIT},
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};
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static int CompareStrings(const char *l, const char *r) {
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size_t i = 0;
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while (l[i] == r[i] && r[i]) ++i;
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return (l[i] & 0xff) - (r[i] & 0xff);
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}
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wctype_t wctype(const char *name) {
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unsigned i;
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for (i = 0; i < ARRAYLEN(kWcTypes); ++i) {
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if (CompareStrings(name, kWcTypes[i].name) == 0) {
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return kWcTypes[i].type;
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}
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}
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return 0;
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}
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int iswctype(wint_t wc, wctype_t type) {
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switch (type) {
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case ALNUM:
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return iswalnum(wc);
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case ALPHA:
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return iswalpha(wc);
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case BLANK:
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return iswblank(wc);
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case CNTRL:
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return iswcntrl(wc);
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case DIGIT:
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return iswdigit(wc);
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case GRAPH:
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return iswgraph(wc);
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case LOWER:
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return iswlower(wc);
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case PRINT:
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return iswprint(wc);
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case PUNCT:
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return iswpunct(wc);
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case SPACE:
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return iswspace(wc);
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case UPPER:
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return iswupper(wc);
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case XDIGIT:
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return iswxdigit(wc);
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default:
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return 0;
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}
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}
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